JPH06209544A - Noise-eliminated electric commutator machine - Google Patents

Noise-eliminated electric commutator machine

Info

Publication number
JPH06209544A
JPH06209544A JP23532193A JP23532193A JPH06209544A JP H06209544 A JPH06209544 A JP H06209544A JP 23532193 A JP23532193 A JP 23532193A JP 23532193 A JP23532193 A JP 23532193A JP H06209544 A JPH06209544 A JP H06209544A
Authority
JP
Japan
Prior art keywords
commutator
noise
armature winding
electric
machine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP23532193A
Other languages
Japanese (ja)
Inventor
Thomas Wizemann
ヴィッツェマン トーマス
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE4233132.3 priority Critical
Priority to DE19924233132 priority patent/DE4233132A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of JPH06209544A publication Critical patent/JPH06209544A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/04Commutators
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00Rotary current collectors, distributors or interrupters
    • H01R39/02Details for dynamo electric machines
    • H01R39/46Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing
    • H01R39/54Auxiliary means for improving current transfer, or for reducing or preventing sparking or arcing by use of impedance between brushes or segments

Abstract

PURPOSE: To remove noise well at low cost by connecting adjacent segments of a commutator connected with the armature winding conductively, thereby suppressing arc between the commutator segment and a commutation brush. CONSTITUTION: End part of an armature winding is secured to each segment 12 of a commutator 11 secured firmly to a motor shaft 10 on the side of commutator face 111 facing the armature winding side. Adjacent segments 12 of the commutator 11 are coupled conductively through a resistor 17. Since a resistor 17 is connected between the segments 12, arc can be suppressed between the segments 12 and a commutation brush and thereby noise can be removed or suppressed effectively.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、ノイズ除去された電気
整流子機、更に詳細には、電機子巻線に接続された整流
子で、その周囲に互いに絶縁されて配置された複数の整
流子片を備えた整流子を有するノイズ除去された電気整
流子機、特に自動車に使用される整流子電動機に関す
る。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise-removed electric commutator machine, and more particularly to a commutator connected to an armature winding and having a plurality of commutators arranged around the commutator and insulated from each other. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a noise-removed electric commutator machine having a commutator provided with a child piece, and more particularly to a commutator motor used in an automobile.

【0002】[0002]

【従来の技術】整流子機、即ちコミュテータ機(整流子
電機とも呼ばれる)は、電動モータとして多様な形態で
自動車に用いられており、特に循環モータとして燃料ポ
ンプに用いられている。このような整流子機はその駆動
中に高周波のノイズスペクトルを発生する。その原因
は、1つの整流子片から他の整流子片に給電が切り替わ
るときの電機子巻線の遮断衝撃にある。従って、このよ
うな整流子機のノイズを抑圧する必要がある。
2. Description of the Related Art Commutator machines, or commutator machines (also called commutator electric machines), are used in various forms as electric motors in automobiles, and particularly in fuel pumps as circulation motors. Such a commutator machine generates a high frequency noise spectrum during its operation. The cause is the breaking impact of the armature winding when the power supply is switched from one commutator piece to another commutator piece. Therefore, it is necessary to suppress such commutator noise.

【0003】このために、このような種類の公知の整流
子電動機(DE2921815 C2)では、ノイズ除
去コンデンサを整流子ブラシあるいはコミュテータブラ
シに接続し、その共通のアース端子をモータの固定子鉄
心に接続するとともに、更に非磁性の部材を配置し、そ
の非磁性の部材によって2極の固定子極の縁部間にブリ
ッジを形成して電機子を取り巻くようにしている。この
非磁性部材によって広い周波数範囲に渡りノイズ電圧を
4−5dBだけ更に減少させている。勿論、このような
部材をモータ内部に配置することにより製造コストが顕
著に増大する。
For this reason, in a known commutator motor of this kind (DE 2921815 C2), the noise elimination capacitor is connected to the commutator brush or commutator brush and its common ground terminal is connected to the stator core of the motor. In addition, a non-magnetic member is further arranged, and the non-magnetic member surrounds the armature by forming a bridge between the edges of the two stator poles. With this non-magnetic member, the noise voltage is further reduced by 4-5 dB over a wide frequency range. Of course, arranging such a member inside the motor significantly increases the manufacturing cost.

【0004】[0004]

【発明が解決しようとする課題】本発明は、このような
問題を解決するためになされたもので、安価にしかも良
好にノイズ除去できる電気整流子機を提供することであ
る。
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric commutator machine which can inexpensively and satisfactorily remove noise.

【0005】[0005]

【課題を解決するための手段】本発明は、この問題を解
決するために、電機子巻線に接続された整流子で、その
周囲に互いに絶縁されて配置された複数の整流子片を備
えた整流子を有するノイズ除去された電気整流子機、特
に自動車に使用される整流子電動機において、隣接する
整流子片がそれぞれ抵抗を介して互いに電導接続される
構成を採用した。
In order to solve this problem, the present invention comprises a commutator connected to an armature winding, and a plurality of commutator pieces arranged around the commutator and insulated from each other. In a noise-removed electric commutator machine having a commutator, particularly a commutator motor used in an automobile, a structure is adopted in which adjacent commutator pieces are electrically connected to each other through a resistor.

【0006】[0006]

【作用】本発明による電気整流子機では、整流子片間の
抵抗は電機子巻線の還流電圧に対して負荷になるので、
ノイズの原因となる整流子片と整流子ブラシ間のアーク
の形成は、余り顕著でなく従って大きなエネルギーを持
たない、という利点がある。残余のエネルギーは抵抗に
おいて熱に変えられ、問題なく整流子片を介して周囲に
あるいは電動燃料ポンプでは整流子の回りを流れる燃料
に放出される。これにより、測定が示すように、コンデ
ンサとコイルによって整流子ブラシにおいてノイズ除去
された従来の整流子電動機に比較して広い周波数範囲に
わたって15dBまでノイズ電圧を減少させることがで
きる。抵抗での損失は確かに整流子機の効率をある程度
減少させるが、それは得られるノイズ除去の効果に比べ
ると僅かである。
In the electric commutator machine according to the present invention, the resistance between the commutator pieces becomes a load with respect to the return voltage of the armature winding.
The formation of an arc between the commutator element and the commutator brush, which causes noise, has the advantage that it is less pronounced and therefore does not carry much energy. The remaining energy is converted into heat in the resistance and is released without problems to the surroundings via the commutator strip or to the fuel flowing around the commutator in the electric fuel pump. This allows the noise voltage to be reduced by up to 15 dB over a wider frequency range as compared to conventional commutator motors where the noise is removed in the commutator brush by capacitors and coils, as the measurements show. The losses in the resistors do reduce the efficiency of the commutator machine to some extent, but are negligible compared to the resulting noise rejection effect.

【0007】他の請求項に記載された手段により、請求
項1に記載の整流子機をさらに好ましく形成し改良する
ことが可能である。
By means of the other claims, it is possible to more preferably form and improve the commutator machine according to claim 1.

【0008】本発明の実施例によると、整流子片の抵抗
接続は、個別の(ディスクリートな)抵抗素子によって
行なわれ、その両端子線が隣接する整流子片に半田付け
される。この場合、抵抗素子は好ましくは、電機子巻線
を個々の整流子片に接続するために使用される接続突起
に半田付けされる。
According to an embodiment of the present invention, the resistance connection of the commutator pieces is made by individual (discrete) resistance elements, both terminal wires of which are soldered to the adjacent commutator pieces. In this case, the resistance element is preferably soldered to the connection lugs used to connect the armature winding to the individual commutator strips.

【0009】本発明の好ましい実施例によれば、量産に
好適にするために、整流子片間の抵抗接続は、整流子片
を機械的に固定するために使用される充填材を所望の抵
抗値で電導可能に形成することによって行なわれる。充
填材の代りに、整流子片を固定するために使用される接
着剤を電導可能に形成することもできる。あるいは充填
材と接着剤の両方を電導可能に形成することもできる。
ノイズ除去された整流子電動機の製造コストは、ノイズ
を除去しない整流子電動機のコストよりも高くはならな
い。
According to a preferred embodiment of the present invention, in order to be suitable for mass production, the resistive connection between the commutator pieces is such that the filler used to mechanically secure the commutator pieces has the desired resistance. It is carried out by forming an electrically conductive material with a value. Instead of the filling material, the adhesive used for fixing the commutator pieces can also be made electrically conductive. Alternatively, both the filler and the adhesive can be formed to be electrically conductive.
The cost of producing a noise-removed commutator motor is no higher than the cost of a noise-free commutator motor.

【0010】[0010]

【実施例】以下、図面に示す実施例に従い本発明を詳細
に説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings.

【0011】一般的な電気整流子機の例としての整流子
電動機は、その構成並びに機能が公知であるので、図1
には、整流子電動機の整流子11のみが斜視図で図示さ
れている。整流子は、電機子巻線を備えたモータ電機子
も担持する電動機軸10上に堅固に固定されている。公
知のように、整流子11は溝13によって互いに分離さ
れた多数の整流子片12を有している。この整流子片1
2は、周囲に均等に分布されて互いに隣接して配置さ
れ、電気的に絶縁された充填材(モールド材)14(図
2)に埋め込まれている。充填材14は電動機軸10を
堅固に取り巻いている。電機子巻線側に向いた整流子1
1の面側111において整流子片12はそれぞれ電機子
巻線用の接続突起15を担持している。それぞれ電機子
巻線のコイルの端部はそれぞれ接続突起15に結合され
ている。コイル端部16、17(図2)の固定は接続突
起15を整流子片12に折り返すことによって行なわ
れ、それによりコイル端部16は接続突起15と整流子
片12の表面間で押圧されて固定される。
A commutator motor, which is an example of a general electric commutator, is known in its structure and function, so that FIG.
Only the commutator 11 of the commutator motor is shown in perspective in FIG. The commutator is rigidly fixed on the motor shaft 10 which also carries the motor armature with armature windings. As is known, the commutator 11 has a number of commutator pieces 12 separated from each other by grooves 13. This commutator piece 1
2 are evenly distributed around the periphery, arranged adjacent to each other, and embedded in an electrically insulating filler (molding material) 14 (FIG. 2). The filling material 14 firmly surrounds the motor shaft 10. Commutator 1 facing the armature winding side
On the surface side 111 of 1, the commutator pieces 12 each carry a connecting projection 15 for the armature winding. The ends of the coils of the armature windings are respectively connected to the connection protrusions 15. The coil ends 16, 17 (FIG. 2) are fixed by folding the connecting projection 15 back onto the commutator piece 12, whereby the coil end 16 is pressed between the connecting projection 15 and the surface of the commutator piece 12. Fixed.

【0012】整流子電動機のノイズを除去するために、
整流子11の隣接する整流子片12は抵抗を介してそれ
ぞれ電導的に結合される。図1と図2に図示される整流
子の場合には、整流子片12の抵抗接続は個別な抵抗素
子17によって実現される。それぞれの抵抗素子17は
その両接続線が隣接する2つの整流子片12の接続突起
15に半田付けされる。
In order to remove noise from the commutator motor,
The adjacent commutator pieces 12 of the commutator 11 are electrically conductively coupled via a resistor. In the case of the commutator shown in FIGS. 1 and 2, the resistance connection of the commutator element 12 is realized by a separate resistance element 17. The respective resistance elements 17 are soldered to the connection projections 15 of the two commutator pieces 12 whose both connection lines are adjacent to each other.

【0013】図3には、量産に好適な変形整流子11′
が縦断面図で図示されている。整流子11′の構成は図
1に図示されているのと同様である。整流子電動機のノ
イズの除去は同様に、整流子11′の整流子片12を抵
抗を介して電導的に互いに接続されることによって行な
われる。しかし、この抵抗接続は、図1及び図2の整流
子11とは異り、個別的な抵抗素子ではなく、充填材1
4′を電導可能に構成し、その場合その電気抵抗をノイ
ズ除去に必要な抵抗値に対応させることにより行なわれ
る。
FIG. 3 shows a modified commutator 11 'suitable for mass production.
Are shown in a longitudinal section. The structure of the commutator 11 'is similar to that shown in FIG. The noise removal of the commutator motor is likewise carried out by electrically connecting the commutator strips 12 of the commutator 11 'to one another via a resistor. However, this resistance connection is different from the commutator 11 of FIGS. 1 and 2, and is not an individual resistance element but a filler material 1.
4'is configured to be electrically conductive, and in that case, the electrical resistance is made to correspond to the resistance value required for noise elimination.

【0014】[0014]

【発明の効果】以上説明したように、本発明では、整流
子片間の抵抗によりノイズの原因となる整流子片と整流
子ブラシ間のアークの形成は、余り大きくなく従って大
きなエネルギーを持たず、従って有効にノイズを除去な
いし抑圧することが可能である。
As described above, in the present invention, the arc formation between the commutator piece and the commutator brush, which causes noise due to the resistance between the commutator pieces, is not so large that it does not have a large energy. Therefore, it is possible to effectively remove or suppress noise.

【図面の簡単な説明】[Brief description of drawings]

【図1】ノイズ除去された整流子電動機の整流子の構成
を示す斜視図である。
FIG. 1 is a perspective view showing a configuration of a commutator of a commutator motor from which noise is removed.

【図2】図1の整流子の構成を示す縦断面図である。FIG. 2 is a vertical cross-sectional view showing the configuration of the commutator shown in FIG.

【図3】整流子の他の実施例で図2と同じその構成を示
す縦断面図である。
FIG. 3 is a longitudinal sectional view showing the same structure as that of FIG. 2 in another embodiment of the commutator.

【符号の説明】[Explanation of symbols]

10 電動機軸 11 整流子 12 整流子片 13 溝 14 充填材 10 Electric Motor Shaft 11 Commutator 12 Commutator Piece 13 Groove 14 Filling Material

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 電機子巻線に接続された整流子(11、
11’)で、その周囲に互いに絶縁されて配置された複
数の整流子片(12)を備えた整流子を有するノイズ除
去された電気整流子機、特に自動車に使用される整流子
電動機において、隣接する整流子片(12)がそれぞれ
抵抗を介して互いに電導接続されることを特徴とするノ
イズ除去された電気整流子機。
1. A commutator connected to an armature winding (11,
11 '), in a noise-removed electric commutator machine having a commutator with a plurality of commutator pieces (12) arranged around it, insulated from one another, in particular a commutator motor used in a motor vehicle, A noise-removed electric commutator machine, characterized in that adjacent commutator pieces (12) are electrically connected to each other through a resistor.
【請求項2】 整流子片(12)の抵抗接続が個別な抵
抗素子(17)によって行なわれ、その両端子線が隣接
する整流子片(12)に半田付けされることを特徴とす
る請求項1に記載の電気整流子機。
2. The commutator element (12) is resistively connected by individual resistance elements (17), both terminal wires of which are soldered to the adjacent commutator element (12). The electric commutator machine according to Item 1.
【請求項3】 整流子片(12)は、電機子巻線を電機
子巻線に向う面側に接続するために接続突起(15)を
担持し、前記個別な抵抗素子(17)が接続突起(1
5)に半田付けされることを特徴とする請求項2に記載
の電気整流子機。
3. The commutator element (12) carries a connecting projection (15) for connecting the armature winding to the side facing the armature winding, to which the individual resistance element (17) is connected. Protrusion (1
The electric commutator machine according to claim 2, wherein the electric commutator machine is soldered to 5).
【請求項4】 機械的に固定するために整流子片(1
2)が充填材(14’)に埋め込まれるかあるいは接着
され、整流子片(12)を抵抗接続するために、充填材
(14′)および/あるいは接着剤が電導可能に形成さ
れることを特徴とする請求項1に記載の電気整流子機。
4. A commutator element (1) for mechanically fixing.
2) is embedded or glued in the filling material (14 ') and the filling material (14') and / or the adhesive is made electrically conductive in order to resistively connect the commutator element (12). The electric commutator machine according to claim 1, which is characterized in that.
JP23532193A 1992-10-02 1993-09-22 Noise-eliminated electric commutator machine Pending JPH06209544A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE4233132.3 1992-10-02
DE19924233132 DE4233132A1 (en) 1992-10-02 1992-10-02 Interference suppressed electrical commutator machine

Publications (1)

Publication Number Publication Date
JPH06209544A true JPH06209544A (en) 1994-07-26

Family

ID=6469463

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23532193A Pending JPH06209544A (en) 1992-10-02 1993-09-22 Noise-eliminated electric commutator machine

Country Status (4)

Country Link
JP (1) JPH06209544A (en)
DE (1) DE4233132A1 (en)
FR (1) FR2696587A1 (en)
GB (1) GB2271220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016135015A (en) * 2015-01-20 2016-07-25 株式会社ミツバ Commutator, armature and motor with brush

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4338345A1 (en) * 1993-11-10 1995-05-11 Bosch Gmbh Robert Electric motor for driving fuel pumps for internal combustion engines
JPH08237913A (en) * 1995-02-24 1996-09-13 Makita Corp Commutator
GB2402556A (en) * 2003-05-28 2004-12-08 Johnson Electric Sa Commutator including moulded varistor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE156910C (en) *
DE1876093U (en) * 1963-03-27 1963-07-25 Uhrenfabrik Villingen J Kaiser DC SMALL MOTOR EQUIPPED WITH SWITCHING MEANS FOR SPARK EXTINCTION.
DE1873206U (en) * 1963-04-04 1963-06-06 Joseph Krischker SMALL ELECTRIC MOTOR PROVIDED WITH DAMPING MEANS.
JPS5641975B2 (en) * 1973-05-14 1981-10-01
JPS6110465Y2 (en) * 1976-12-20 1986-04-03
JPS622942Y2 (en) * 1980-10-23 1987-01-23
JPH058789Y2 (en) * 1985-05-02 1993-03-04
JPS622358U (en) * 1985-06-18 1987-01-08
GB2203292B (en) * 1987-03-27 1992-01-08 Johnson Electric Ind Mfg Commutator
EP0354643A3 (en) * 1988-08-06 1990-12-05 Delco Products Overseas Corporation An armature drive shaft assembly
GB8818721D0 (en) * 1988-08-06 1988-09-07 Qelco Products Overseas Corp Armature drive shaft assembly
GB2224606B (en) * 1988-10-13 1993-03-10 Johnson Electric Ind Mfg Connecting a suppression element to a commutator.
JPH053647A (en) * 1991-06-25 1993-01-08 Asmo Co Ltd Manufacture of commutator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016135015A (en) * 2015-01-20 2016-07-25 株式会社ミツバ Commutator, armature and motor with brush

Also Published As

Publication number Publication date
FR2696587A1 (en) 1994-04-08
GB9319735D0 (en) 1993-11-10
DE4233132A1 (en) 1994-04-07
GB2271220A (en) 1994-04-06

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